Shell, battery device and electric equipment

Abstract

The utility model discloses a shell, a battery device and electric equipment, the shell is used for the battery device, the shell comprises a bottom shell and a cover body, the bottom shell is provided with an accommodating cavity with an opening at one end, the bottom shell comprises a first shell and a second shell, the first shell is arranged at the periphery of the second shell, and the first shell and the second shell are arranged at an interval; the cover body covers the opening of the accommodating cavity, and the cover body is connected with the first shell and the second shell in a matched mode so as to seal the accommodating cavity. By arranging the bottom shell and the cover body, the bottom shell comprises the first shell body and the second shell body which are arranged at intervals, and the cover body is connected with the first shell body and the second shell body in a matched mode, most rainwater is blocked by the first shell body, residual small water flow can also be blocked by the second shell body, rainwater and other impurities can be prevented from entering the shell, and the waterproof performance of the battery device can be improved; the short-circuit risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a shell, a battery device and electrical equipment. Background Art

[0002] Outdoor energy storage power supplies can be used in field emergencies, natural disaster emergencies, outdoor tourism, business travel, outdoor operations, suburban gatherings, power outage emergencies and other fields.

[0003] However, the water resistance of the energy storage power supply is poor, which poses a certain safety hazard. Rainwater or liquid entering the outdoor energy storage power supply will cause a short circuit and cause the electrical appliance to catch fire, which may lead to personal safety and property loss of the user in serious cases. Utility Model Content

[0004] The utility model aims to provide a shell, a battery device and an electrical device, so as to improve the waterproof performance of the battery device.

[0005] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0006] In a first aspect, the utility model provides a shell, which is used for a battery device, and the shell includes a bottom shell and a cover body, the bottom shell has a receiving cavity with an opening at one end, the bottom shell includes a first shell and a second shell, the first shell is arranged on the outer periphery of the second shell, and the first shell and the second shell are arranged at a distance; the cover body is covered at the opening of the receiving cavity, and the cover body is cooperatively connected with both the first shell and the second shell to close the receiving cavity.

[0007] In one embodiment, the cover body includes a cover plate and a matching portion, wherein the matching portion is disposed on a side of the cover plate facing the bottom shell, an edge of the cover plate is matched and connected to the first shell, and the matching portion is matched and connected to the second shell.

[0008] In one embodiment, a connecting groove is formed at one end of the first shell toward the cover body, a bottom wall of the connecting groove is connected to a side surface of the first shell toward the second shell, and the cover plate is cooperatively connected to the bottom wall of the connecting groove.

[0009] In one embodiment, a fixing groove is formed at one end of the matching portion facing the bottom shell, and one end of the second shell facing the cover body extends into the fixing groove.

[0010] In one embodiment, the cover body further includes a sealing member, which is disposed in the fixing groove, and the sealing member elastically abuts against an inner wall of the fixing groove and an end of the second shell extending into the fixing groove.

[0011] In one embodiment, the bottom shell further includes a connecting plate, which is disposed on the outer periphery of the second shell and connected to the first shell.

[0012] In one embodiment, the connecting plate is provided with a drainage hole, and the drainage hole is suitable for draining the liquid between the first shell and the second shell.

[0013] In one embodiment, the bottom shell further includes a reinforcing plate, and the reinforcing plate connects the first shell and the second shell.

[0014] In a second aspect, the utility model further provides a battery device, comprising a battery module and a housing as described in any one of the various embodiments of the first aspect, wherein the battery module is accommodated in a receiving cavity of the housing.

[0015] In a third aspect, the utility model further provides an electrical equipment, comprising an electrical device and a battery device as described in the second aspect, wherein the battery device supplies power to the electrical device.

[0016] By setting a bottom shell and a cover body, the bottom shell includes a first shell and a second shell that are spaced apart, and the cover body is cooperatively connected to the first shell and the second shell. Most of the rainwater is blocked by the first shell, and the remaining small water flow can also be blocked by the second shell, which can prevent impurities such as rainwater from entering the outer shell, improve the waterproofness of the battery device, and reduce the risk of short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is an exploded schematic diagram of a battery device according to an embodiment;

[0019] Figure 2 is a three-dimensional view of a bottom shell of an embodiment;

[0020] Figure 3 is a bottom view of a cover body of an embodiment;

[0021] Figure 4 is a cross-sectional view of a battery device according to an embodiment.

[0022] Description of reference numerals:

[0023] 1000-battery device;

[0024] 100-housing, 10-bottom housing, 11-accommodating chamber, 12-first housing, 121-first side plate, 122-connecting groove, 13-second housing, 131-second side plate, 14-connecting plate, 141-drain hole, 15-bottom plate, 16-reinforcement plate, 20-cover body, 21-cover plate, 22-matching portion, 221-fixing groove, 222-matching plate, 223-connecting block, 23-sealing member;

[0025] 200-battery module. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0029] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0030] An embodiment of the utility model provides an electric device, including an electric device and a battery device in the embodiment of the utility model, and the battery device supplies power to the electric device.

[0031] Optionally, the electrical device may be an electric vehicle, a hybrid vehicle, a base station, a household electrical load, an outdoor electrical facility, etc.

[0032] Optionally, the battery device may be a power battery device, an energy storage battery device, etc., without specific limitation.

[0033] In one embodiment, the electrical equipment is an outdoor power supply, and the battery device is an energy storage battery device.

[0034] The electrical equipment adopts the battery device in the embodiment of the utility model, and the battery device has good waterproof performance, which can improve the safety performance of the battery device.

[0035] Please refer to Figure 1 The embodiment of the present invention further provides a battery device 1000 , including a battery module 200 and a housing 100 in the embodiment of the present invention, wherein the battery module 200 is received in a receiving cavity 11 of the housing 100 .

[0036] Optionally, the battery module 200 includes at least one battery cell, which may be a soft-pack battery cell or a hard-shell battery cell. When there are multiple battery cells, the multiple battery cells are electrically connected and arranged side by side.

[0037] Optionally, the battery cell can be a wound battery cell or a laminated battery cell, etc., without specific limitation. The battery cell includes a positive electrode sheet, a negative electrode sheet and a separator, and the positive electrode sheet, the separator and the negative electrode sheet are stacked in sequence. The battery device 1000 also includes a positive electrode tab and a negative electrode tab, and the positive electrode tab and the negative electrode tab can be arranged at one end of the battery cell in the length direction, or can be respectively arranged at two opposite or adjacent ends of the battery cell, without specific limitation.

[0038] Optionally, the battery device 1000 further includes a circuit board, which may be a PCB board commonly used in the art. The circuit board is electrically connected to the battery cell, and the circuit board is also accommodated in the housing 100 .

[0039] The battery module 200 in the embodiment of the present invention can improve the waterproof performance of the battery device 1000 by adopting the housing 100 in the embodiment of the present invention.

[0040] The housing 100 in the embodiment of the present utility model is described in detail below.

[0041] Please refer to Figure 1 and Figure 2 The utility model provides a shell 100, which is used for a battery device 1000. The shell 100 includes a bottom shell 10 and a cover body 20. The bottom shell 10 has a receiving cavity 11 with an opening at one end. The bottom shell 10 includes a first shell 12 and a second shell 13. The first shell 12 is arranged on the outer periphery of the second shell 13, and the first shell 12 and the second shell 13 are arranged at intervals; the cover body 20 is covered at the opening of the receiving cavity 11, and the cover body 20 is matched and connected with the first shell 12 and the second shell 13 to close the receiving cavity 11.

[0042] Optionally, the bottom shell 10 includes a bottom plate 15 and a plurality of side plates, wherein the side plates are connected to the bottom plate 15 and enclose a receiving cavity 11. The receiving cavity 11 is open at one end opposite to the bottom plate 15, and the battery cell is received in the receiving cavity 11.

[0043] Optionally, the bottom shell 10 is made of a material with high structural strength, specifically metal material, high-strength plastic, ceramic, etc. The metal material is, for example, aluminum, aluminum alloy, magnesium alloy, iron, iron alloy, etc.

[0044] Optional, such as Figure 2 As shown, the side panels include a plurality of first side panels 121 and a plurality of second side panels 131. The plurality of first side panels 121 are connected to form a first shell 12, and one end of the first side panel 121 away from the opening of the accommodating cavity 11 is connected to the bottom panel 15; the plurality of second side panels 131 are connected to form a second shell 13, and the second side panels 131 may or may not be connected to the bottom panel 15 without limitation.

[0045] Optionally, the second shell 13 encloses a receiving cavity 11 , and the battery module 200 is received in the receiving cavity 11 .

[0046] The bottom shell 10 can be an integrated structure, that is, the bottom plate 15 and the side plate are an integrated structure made by an integrated molding process, and the integrated molding process can be stamping, casting, etc., without limitation. The bottom shell 10 can also be a split structure, and the side plate and the bottom plate 15 can be connected and fixed by welding, bonding, clamping, screwing, etc. The wall thickness of the bottom shell 10 can be roughly uniform, that is, the thickness of the side plate can be roughly uniform, and the thickness of the bottom plate 15 and the side plate can also be roughly the same.

[0047] Optionally, the shape of the cover body 20 can be square, rectangular, circular, polygonal, etc. The shape of the cover body 20 can correspond to the opening shape of the receiving cavity 11, and there is no specific limitation.

[0048] Outdoor energy storage power supplies can be used in the fields of field emergency, natural disaster emergency, outdoor tourism, business travel, outdoor work, suburban gatherings, power outage emergency, etc. However, the water resistance of this energy storage power supply is poor, and there are certain safety hazards. For example, rainwater, liquid, etc. entering the outdoor energy storage power supply may cause a short circuit and cause the electrical appliance to catch fire, which may seriously cause personal safety and property loss to the user.

[0049] The housing 100 in the embodiment of the utility model is provided with a bottom shell 10 and a cover body 20. The bottom shell 10 includes a first shell body 12 and a second shell body 13 which are spaced apart. The cover body 20 is cooperatively connected with the first shell body 12 and the second shell body 13. Most of the rainwater is blocked by the first shell body 12, and the remaining small water flow can also be blocked by the second shell body 13. Impurities such as rainwater can be prevented from entering the housing 100, thereby improving the waterproofness of the battery device 1000 and reducing the risk of short circuit.

[0050] Optional, such as Figure 3 and Figure 4As shown, the cover body 20 includes a cover plate 21 and a matching portion 22 . The matching portion 22 is disposed on a side of the cover plate 21 facing the bottom shell 10 . The edge of the cover plate 21 is matched and connected with the first shell 12 , and the matching portion 22 is matched and connected with the second shell 13 .

[0051] Optionally, the cover body 20 may be an integrated structure, that is, the cover plate 21 and the matching portion 22 are an integrated structure made by an integrated molding process, and the integrated molding process may be stamping, casting, etc., without limitation. The cover body 20 may also be a split structure, and the cover plate 21 and the matching portion 22 may be connected and fixed by welding, bonding, clamping, screwing, etc.

[0052] Optionally, the cover body 20 is made of a material with high structural strength, specifically metal material, high-strength plastic, ceramic, etc. The metal material is, for example, aluminum, aluminum alloy, magnesium alloy, iron, iron alloy, etc.

[0053] Optionally, the cover plate 21 is connected to the end of the first shell 12 that faces the opening of the receiving cavity 11, and the connection method can be snap connection, bonding, etc., which is not specifically limited. The matching portion 22 is connected to the end of the second shell 13 that faces the opening of the receiving cavity 11, and the connection method is similar to the connection method between the cover plate 21 and the first shell 12, which can be used as a reference and will not be repeated.

[0054] Optionally, the cover body 20 and the bottom shell 10 can be of embedded design, that is, when the cover body 20 is connected to the first shell 12 and the second shell 13, the side of the cover plate 21 facing away from the bottom shell 10 is flush with the end of the opening of the first shell 12 facing the accommodating cavity 11, thereby ensuring the appearance effect, and the cover body 20 is not visible from the outside, thereby enhancing the aesthetics of the outer shell 100.

[0055] By setting the cover body 20 including a cover plate 21 and a matching portion 22, the matching portion 22 is set on the side of the cover plate 21 facing the bottom shell 10, the edge of the cover plate 21 is matched and connected with the first shell 12, and the matching portion 22 is matched and connected with the second shell 13. Most of the rainwater is blocked by the first shell 12, and the remaining small water flow can be blocked by the matching portion 22 and the second shell 13 even if it flows in from the gap between the cover plate 21 and the first shell 12, so that impurities such as rainwater can be prevented from entering the receiving cavity 11 of the outer shell 100, the waterproofness of the outer shell 100 can be improved, and the risk of short circuit can be reduced.

[0056] Optionally, a connection groove 122 is formed at one end of the first shell 12 facing the cover body 20 , the bottom wall of the connection groove 122 is connected to the side of the first shell 12 facing the second shell 13 , and the cover plate 21 is cooperatively connected to the bottom wall of the connection groove 122 .

[0057] Optionally, the connecting groove 122 is opened on the side of the first shell 12 facing the second shell 13, that is, the connecting groove 122 is opened on the inner circumference of the first shell 12, the side wall of the connecting groove 122 is parallel to the side of the first shell 12 facing the second shell 13, and the bottom wall of the connecting groove 122 is connected to the side of the first shell 12 facing the second shell 13.

[0058] Optionally, the bottom wall of the connecting groove 122 is perpendicular to the side walls of the connecting groove 122 , and the bottom wall of the connecting groove 122 can be any one of a flat surface, a curved surface, and a folded surface, without specific limitation.

[0059] Optionally, a surface of the cover plate 21 facing the bottom shell 10 is connected to the bottom wall of the connecting groove 122 to close the receiving cavity 11 .

[0060] By setting a connecting groove 122 at one end of the first shell 12 facing the cover body 20, the bottom wall of the connecting groove 122 is connected to the side of the first shell 12 facing the second shell 13, and the cover plate 21 is cooperatively connected to the bottom wall of the connecting groove 122, it can prevent rainwater from entering the interior of the shell 100, improve the waterproofness of the shell 100, and reduce the risk of short circuit.

[0061] Optional, such as Figure 3 and Figure 4 As shown, a fixing groove 221 is defined at one end of the matching portion 22 facing the bottom shell 10 , and one end of the second shell 13 facing the cover body 20 extends into the fixing groove 221 .

[0062] Optionally, the mating portion 22 includes a mating plate 222 and a connecting block 223, one end of the mating plate 222 is connected to the cover plate 21, and the other end is connected to the connecting block 223. The mating portion 22 can be an integrated structure, and the integrated molding process of the integrated structure can be stamping, casting, etc., without limitation. The mating portion 22 can also be a split structure, and the mating plate 222 and the connecting block 223 can be connected and fixed by welding, bonding, clamping, screwing, etc.

[0063] Optionally, the mating plate 222 is perpendicular to the surface of the cover plate 21. A fixing groove 221 is provided on the side of the connecting block 223 facing away from the mating plate 222, and one end of the second shell 13 facing the cover body 20 extends into the fixing groove 221. The end surface of the second shell 13 facing the cover body 20 may contact the bottom wall of the fixing groove 221, or may have a gap with the bottom wall of the fixing groove 221, without limitation.

[0064] By setting a fixing groove 221 on one side of the matching portion 22 facing the bottom shell 10, and the second shell 13 extending into the fixing groove 221 at one end facing the cover 20, the matching portion 22 and the second shell 13 can block the small water flow leaking from the edge of the first shell 12 and the cover plate 21, thereby improving the waterproofness of the housing 100 and reducing the risk of short circuit. In addition, the fixing groove 221 also has a certain guiding function, which can assist the assembly and positioning of the cover 20 and the bottom shell 10.

[0065] Optional, such as Figure 3 As shown, the cover 20 further includes a sealing member 23 , which is disposed in the fixing groove 221 , and the sealing member 23 elastically abuts against the inner wall of the fixing groove 221 and the end of the second shell 13 extending into the fixing groove 221 .

[0066] Optionally, the seal 23 can be a seal 23 commonly used in the art, such as a thermoplastic elastomer seal 23, a rubber-plastic seal 23, a rubber seal 23, etc. The shape of the seal 23 can be a double-bubble sealing strip, a single-bubble sealing strip, a rectangular sealing strip, a V-shaped sealing strip, etc., without specific limitation.

[0067] In one embodiment, the sealing member 23 is a waterproof silicone ring.

[0068] Optionally, the seal 23 is disposed on the inner wall of the fixing groove 221 away from the bottom shell 10 to facilitate the assembly of the second shell 13. The seal 23 is connected and fixed to the inner wall of the fixing groove 221 by bonding, clamping, screwing, etc., which is not specifically limited.

[0069] Optionally, after the end of the second shell 13 toward the cover 20 is inserted into the fixing groove 221, it should be elastically abutted against the seal 23 to achieve the function of water vapor and dustproof. At the same time, the end of the second shell 13 inserted into the fixing groove 221 should not be too deep, that is, the second shell 13 should not over-compress the seal 23, so as to avoid excessive compression of the seal 23, resulting in premature aging and failure, and reducing the service life.

[0070] The cover body 20 also includes a sealing member 23, which is disposed in the fixing groove 221. The sealing member 23 elastically abuts against the inner wall of the fixing groove 221 and one end of the second shell 13 extending into the fixing groove 221, thereby preventing water vapor and dust from entering the receiving cavity 11 and improving the sealing effect.

[0071] Optional, such as Figure 2 As shown, the bottom shell 10 further includes a connecting plate 14 , which is disposed on the outer periphery of the second shell 13 and connected to the first shell 12 .

[0072] Optionally, the bottom shell 10 can be an integrated structure, and the connecting plate 14, the first shell 12 and the second shell 13 are made by an integrated molding process; or, the connecting plate 14, the first shell 12 and the second shell 13 are connected and fixed by welding, bonding, clamping, screwing, etc.

[0073] Optionally, the connecting plate 14 connects one end of the second shell 13 away from the cover body 20 and one end of the first shell 12 away from the cover body 20; or, the connecting plate 14 connects the side of the second shell 13 facing the first shell 12 and the side of the first shell 12 facing the second shell 13; or, the connecting plate 14 connects one end of the second shell 13 away from the cover body 20 and the side of the first shell 12 facing the second shell 13, which can save materials and reduce costs. All of the above methods are possible and are not specifically limited.

[0074] Optional, such as Figure 2 As shown, the connecting plate 14 connects one end of the second shell 13 away from the cover body 20 and one end of the first shell 12 away from the cover body 20. The connecting plate 14 can be considered as the part of the bottom plate 15 of the outer shell 100 located between the first shell 12 and the second shell 13. The second shell 13 and the bottom plate 15 enclose the accommodating cavity 11 to accommodate the battery module 200.

[0075] In another embodiment, the connecting plate 14 connects one end of the second shell 13 away from the cover body 20 and the side of the first shell 12 facing the second shell 13, and the second shell 13, the connecting plate 14, the first shell 12 and the bottom plate 15 together enclose the receiving cavity 11 to accommodate the battery module 200.

[0076] Optionally, the distance from one end of the first shell 12 facing the cover 20 to the connecting plate 14 is greater than the distance from one end of the second shell 13 facing the cover 20 to the connecting plate 14 , which facilitates the embedded assembly of the cover 20 relative to the bottom shell 10 .

[0077] By configuring the bottom shell 10 to further include a connecting plate 14 , the connecting plate 14 connects one end of the second shell 13 away from the cover body 20 and the first shell 12 , so that the stability of the double-layer structure of the bottom shell 10 can be enhanced and deformation is not easy.

[0078] Optional, such as Figure 2 As shown, the connection plate 14 is provided with a drainage hole 141 , and the drainage hole 141 is suitable for draining the liquid between the first shell 12 and the second shell 13 .

[0079] Optionally, the shape of the drainage hole 141 can be square, circular, triangular, polygonal, etc., and there is no specific limitation. The number of the drainage hole 141 can be one or more, which can be set according to actual conditions.

[0080] Optionally, there are multiple drainage holes 141 , and the multiple drainage holes 141 are equidistantly spaced apart from each other on the connecting plate 14 to drain the accumulated water between the first shell 12 and the second shell 13 .

[0081] The connecting plate 14 is provided with a drainage hole 141, which is suitable for draining the accumulated water between the first shell 12 and the second shell 13, so as to avoid long-term accumulation of water between the first shell 12 and the second shell 13, or accumulation of water at the connection between the first shell 12 and the second shell 13 and the cover body 20, thereby affecting the sealing effect.

[0082] Optional, such as Figure 2 As shown, the bottom shell 10 further includes a reinforcing plate 16 , and the reinforcing plate 16 connects the first shell 12 and the second shell 13 .

[0083] Optionally, the reinforcing plate 16 is disposed between the first shell 12 and the second shell 13 , and connects opposite surfaces of the first shell 12 and the second shell 13 .

[0084] Optionally, the reinforcing plate 16 and the first shell 12 and the second shell 13 may be an integral structure, or the reinforcing plate 16, the first shell 12 and the second shell 13 may be connected and fixed by welding, bonding, clamping, screwing, etc., without limitation.

[0085] Optionally, the bottom shell 10 includes a plurality of reinforcing plates 16 , which are arranged parallel to the direction of gravity, and each reinforcing plate 16 is connected to the first shell 12 and the second shell 13 .

[0086] Optional, such as Figure 2 As shown, a plurality of reinforcing plates 16 are arranged at equal distances around the second shell 13 , and the reinforcing plates 16 connect the outer circumferential surface of the second shell 13 and the inner circumferential surface of the first shell 12 to form an “I”-shaped structure, which can enhance the structural strength of the bottom shell 10 .

[0087] Optionally, the bottom shell 10 may further include a plurality of reinforcing plates 16 arranged perpendicular to the direction of gravity. The reinforcing plates 16 arranged perpendicular to the direction of gravity are provided with a first hole to avoid water accumulation and to enhance the structural strength of the bottom shell 10 .

[0088] By configuring the bottom shell 10 to further include a reinforcing plate 16 , the reinforcing plate 16 connects the first shell 12 and the second shell 13 , so that the structural strength of the bottom shell 10 can be enhanced.

[0089] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0090] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A housing, characterized in that: The housing is used for a battery device, and the housing comprises: A bottom shell having a receiving cavity with an opening at one end, the bottom shell comprising a first shell and a second shell, the first shell being arranged on the outer periphery of the second shell, and the first shell and the second shell being arranged at intervals; A cover body is disposed at the opening of the receiving cavity, and the cover body is matched and connected with the first shell and the second shell to close the receiving cavity.

2. The housing according to claim 1, characterized in that The cover body includes a cover plate and a matching portion, wherein the matching portion is arranged on a side of the cover plate facing the bottom shell, an edge of the cover plate is matched and connected with the first shell, and the matching portion is matched and connected with the second shell.

3. The housing according to claim 2, characterized in that A connecting groove is formed at one end of the first shell body facing the cover body, a bottom wall of the connecting groove is connected to a side surface of the first shell body facing the second shell body, and the cover plate is cooperatively connected to the bottom wall of the connecting groove.

4. The housing according to claim 2, characterized in that A fixing groove is formed at one end of the matching portion facing the bottom shell, and one end of the second shell facing the cover body extends into the fixing groove.

5. The housing according to claim 4, characterized in that The cover body further comprises a sealing member, which is arranged in the fixing groove and elastically abuts against an inner wall of the fixing groove and an end of the second shell extending into the fixing groove.

6. The housing according to claim 1, characterized in that The bottom shell further includes a connecting plate, which is disposed on the outer periphery of the second shell and connected to the first shell.

7. The housing according to claim 6, characterized in that The connecting plate is provided with a drainage hole, and the drainage hole is suitable for draining the liquid between the first shell and the second shell.

8. The housing according to claim 6, characterized in that The bottom shell further includes a reinforcing plate connecting the first shell and the second shell.

9. A battery device, characterized in that: It comprises a battery module and a housing as claimed in any one of claims 1 to 8, wherein the battery module is accommodated in a receiving cavity of the housing.

10. An electrical device, characterized in that: It comprises an electric device and the battery device as claimed in claim 9, wherein the battery device supplies power to the electric device.

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